Volcanisme de l'ı̂le aux Pingouins,archipel Crozet,témoin de l'hétérogénéité du manteau fertile au sud de l'océan IndienPenguins Island,Crozet archipelago,volcanic evidence for a heterogeneous mantle in the southern Indian Ocean

Despite its small area (5.6 km²), the Penguins Island brings magmatic information concerning mantle geochemical heterogeneities in southwestern Indian Ocean. The volcanism that built the island was firstly associated with marine deposits, and secondly with aerial, giving then abundant volcanic breccias and lava flows. The rocks are weakly differentiated and result of magmatic fractionation from picritic to tephritic types. KAr ages are near 1.1 Ma. The magmatic source may be related to a HIMU reservoir or to EMI ± EMII ones, depending on the geochemical evidences that are taken into account. However, comparisons with the Marion Island, on the same oceanic plateau and far to the west, as well as with Kerguelen Islands, far to the east, suggest a very heterogeneous mantle source. To cite this article: A. Giret et al., C. R. Geoscience 334 (2002) 481–488.     

From compassion to compliance? Trends in refugee and humanitarian migration in Australia

Australia has a long history of offering protection to refugees. In the post-World War II period it has predominantly been involved in an offshore refugee settlement program whereby it has assisted international efforts to assist refugees and resettled almost 600,000 refugees in Australia. In recent years, however, substantial numbers of asylum seekers have arrived on Australia's shores and this has seen the development of an onshore refugee program which is seen as quite separate from the offshore program. This has involved the detention of asylum seekers while their claims for protection are assessed and when they are assessed as being qualified for protection they are given different status to offshore determined refugee settlers. The paper summarises the development of refugee policy in Australia and the evolution of the offshore and onshore policies. This revised version was published online in August 2006 with corrections to the Cover Date.     

姜堰市溱湖地热1井施工工艺

介绍了姜堰溱湖风景区地热1井的岩性特征、施工技术和成井工艺。该井采用塔式钻具结合，有效地提高了钻井效率又防止了孔壁塌坍、掉块。     

基体裂隙实测全迹长分布规律研究

由于有很好的露头条件,作者对澜沧江小湾水电站坝肩基体裂隙的全迹长进行了现场测量,并统计了其分布规律。发现基体裂隙的全迹长分布特征与优势方位无关,全迹长主要集中分布在1～3m的范围内且在(1 0m ,2 0m ]和(2 0m ,3 0m]区间内大致服从正态分布,总体均值在2 6m左右,概率分布密度服从负指数函数关系。     

1996年12月21日四川白玉,巴塘间5.5级地震烈度考察

经现场考察，１９９６年１２月２１日１６时３９分在四川白玉、巴塘间发生的５．５级地震的宏观震中位于白玉县的沙巴乡至巴塘县的茶洛乡之间的高山无人区。极震区烈度为Ⅶ度，Ⅶ度区面积和Ⅵ度区面积各为３３０和２１００平方公里，等烈度线分布本呈长轴为北西北椭圆形。震区内建筑物破坏严重，地面破坏现象较为普遍，电站与式矿企业也遭受损失。     

天山天池风景名胜区旅游业持续发展初探

本文在分析天山天池风景名胜区旅游业和旅游资源开发现状特点的基础上，指出要促进景区旅游业的发展和旅游资源环境的大力改善，旅游业可持续发展战略是其的选择。根据旅游业可持续发展的内容和要求，本文对天池风景名胜区旅游业可持续发展的主要措施进行了初步的探讨和论述。     

论露头剖面层序地层学研究方法:以柯坪县印干村志留系剖面为例

作者认为层序地层学方法原则上适用于每一露头，但最好是沉积滨线坡折％近的露头。系统总结了＂横向追踪、多个露头对比综合及区域范围内的精细填图＂的露头层序地层学研究方法。最后以何坪县印干村志留系剖面为例进行说明。     

Computer-aided geometric design of geologic surfaces and bodies

Bivariate quadratic simplicial B-splines are employed to obtain aC ¹-smooth surface from scattered positional or directional geological data given over a two-dimensional domain. Vertices are generated according to the areal distribution of data sites, and polylines are defined along real geological features. The vertices and the polylines provide a constrained Delaunay triangulation of the domain. Note that the vertices do not generally coincide with the data sites. Six linearly independent simplex B-splines are associated with each triangle. Their defining knots and finite supports are automatically deduced from the vertices. Specific knot configurations result in discontinuities of the surface or its directional derivatives. Coefficients of a simplex spline representation are visualized as geometric points controlling the shape of the surface. This approach calls for geologic modeling and interaction of the geologist up front to define vertices and polylines, and to move control points initially given by an algorithm. Thus, simplex splines associated with irregular triangles seem to be well-suited to approximate and allow further geometrically modeling of geologic surfaces, including discontinuities, from scattered data. Applications to mathematical test as well as to real geological data are given as examples.     

河西地区的散射辐射

河西地区是一特殊的自然地理区域，有气候干燥，荒漠地理景观和地形狭窄等三大特点。本文利用河西地区东部的民勤和西部的敦煌二个日射站的三年（１９８１－１９８３）资料，计算了各种因子对散射辐照度的贡献。     

简析山西临汾地震台短水准跨断层测站的识别与判定

为了正确判断山西临汾地震台所监测的罗云山断裂带通过短水准测线的具体位置,利用测线剖面图、高差月均值图等方法,对其进行了简要的分析和研究。认为,临汾台短水准BM4—BM1测段的2-3测站(2测站)跨越断层。这对于临汾台短水准捕捉地震前兆信息有着积极的意义。